Drill clamp and support.



PATENTED OCT. 30, 1906.

I. P. GAHILL.

DRILL CLAMP AND SUPPORT.

APPLICATION FILED JAN. 18,1905.

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UNITED STATES PATENT OFFICE.

JOHN P. OAHILL. OF MASSILLON, OHIO, ASSIGNOR OF ONE-HALF TO I JAMES Gr. BOWMAN, OF CANTON, OHIO.

Specification of Letters Patent.

Patented Oct. 30, 1906.

Application filed January 18, 1905- Serial No. 241,628.

To all whom it may concern:

Be it known that 1, JOHN P. CAHILL, a citizen of the United States, residing at Massillon, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Drill Clamps and Supports; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, and to the numerals of reference marked thereon, in which- Figure 1 is a perspective view showing a clamp connected to an I-beam and illustrating a drill placed in operative position. Fig. 2 is a view showing the clamp and drill pro erly ap lied and the drill in position to dull the we of an I-beam. Fig. 3 is a detached view of the clamp members, showing a portion of the foot-bar. Fig. 4 is a view showing a portion of the drill-support bar and illustrating the clamp-block and set-screw.

The present invention has relation to drill clam s and supports; and it consists in the novel con'struct1on hereinafter described, and particularly pointed out in the claim.

Similar numerals of reference indicate corresponding parts in all the figures of the drawings. a

In the accompanying drawings, 1 represents the foot-bar, which is formed of any desired length, reference being had to the limit of adjustment desired. The foot-bar 1 is provided with the shank-holding head 2, through which shank-holding head the shank 3 is located, it being understood that suitable apertures are to be formed in the head, the size of which correspond substantially with the size of the shank, but the relative size of the shank and apertures being such that the shzfink 3 can be moved or adjusted longitudina y.

For the purpose of holding the shank in fixed adjustment the yoke 4 is provided, which yoke is extended through the foot-bar 1 and the clamps 5 when the device is applied as in Fig. 2; but when applied as illustrated in Fig. 1 the yoke is connected to the head 6, by which arrangement the device can be applied so as to bring the shank 3 parallel with the foot-bar 1, as shown in Fig. 2, or at right angles to the foot-bar l, as illustrated in Fig. 1.

It will be understood that anaperture 7 must be formed in the head 6, which aperture is for the same purpose as the aperture in the foot-bar 1.

The drill-holdin plate 8 is adjustably attached to the shan 3 and is held in fixed adjustment by means of the clamp-block 9 and the set-screw 10.

For the purpose of reventin the clampblock from becoming etached om its seat 11 when the set-screw 10 is turned to loosen the drill holding or su port late 8, said clamp-block is provide wit the lateral flanges 12, which are located upon opposite faces of the drill holding or support plate 8.

For the p' ose of providing for the adjustment of lihe drill 13 the foot bar is formed open or is provided with the long recess 14.

In use when it is desired to adjust the device as illustrated in Fi 1 the foot-bar 1 is secured to the top of an -beam by means of the clamps 15 and 16 and the clamp-block 17, said parts being securely clamped upon the flanges of an I-beam by means of suitable clamp-bolts 18.

For the purpose of allowing the drill to clear the clamps 15 and 16 sa1d clamps are provided with the recesses 19, by which arrangement holes can be drilled in the extreme ed es of the flanges of an Ibeam.

he clamp-block 17 is provided with the flanges 20 and the center rib 21, the flanges 20 bein for the purpose of embracing the outer e ges of the foot-bar'l, and the center rib is for the purpose of reventing any springing of the members of the foot-bar 1 when said foot-bar is properly clamped upon an I-beam.

For the urpose of providin a means for properly clamping different t 'cknesses of I-beams or other shapes of beams the clamps 15 and 16 should be provided with the screws 22, so that if in the event the clamping-bolts 18 do not properly hold the clamps 15 and 16 the set-screws 22 may be employed.

The drill 13 within itself forms no particular part of the present invention; but it will be understood that a drill having the ordinary mechanism for feeding is to be employed, and it will be understood that the drill can be supported in pro er position after it has been GEL properly adjusted to the place Where it is designed to be operated.

The clam 15 and the clamp-block 18 can be moved W en loosened to or from the head end of the foot-bar, by which adjustment the foot-bar can be clamped to beams having different widths of flanges.

I have described the present invention as applied to I-beams; but it will of course be understood that I-beams are not the only kind of beams to which my invention can be applied, as it will be readily seen that it can be attached to railwayrails, channel-bars, and Z-bars in the same manner that it is attached to the illustrated I-beams.

Having fully described my invention, what I claim as new, and-desire to secure by Letters Patent, is

In a drill clamp and support, the combination of a slotted foot-bar provided with a flange projecting at right angles therefrom at one of its extreme ends, said flange havin an opening therethrough, and the foot-p ate having a similar opening adjacent the flange, the axes of the openin s crossin each other at right angles, a shan adapte to fit both of said 0 enin s, a yoke of a size to fit over the shan an flange whereby the yoke may be secured to either a drill-bracing plate secured to the shank, and means to clamp the foot-plate to a beam, substantially as and for the purpose specified.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two Witnesses.

JOHN P. OAHILL.

Witnesses:

J. A. JEFFERS, F. W. BOND.

means on the foot-bar and 

